超低排放形势下SCR脱硝工程改造现状的调查

doi:10.11930/j.issn.1004-9649.201801033

中国电力 ›› 2018, Vol. 51 ›› Issue (11): 163-167.DOI: 10.11930/j.issn.1004-9649.201801033

超低排放形势下SCR脱硝工程改造现状的调查

晏敏, 张杨, 朱跃, 江建平

华电电力科学研究院, 浙江杭州 310030

收稿日期:2018-01-03 修回日期:2018-01-23 出版日期:2018-11-05 发布日期:2018-11-16
作者简介:晏敏(1982-),女,硕士,高级工程师,从事火电厂烟气脱硫脱硝研究研究,E-mail:yanmin0606@163.com;张杨(1985-),男,硕士,工程师,从事火电厂环境保护方面的研究和技术服务,E-mail:yang-zhang@chder.com;朱跃(1962-),男,硕士,教授级高工,从事热能环保技术研究,E-mial:yue-zhu@chder.com
基金资助:
国家重点研发计划资助项目（2016YFC0203704-2；2017YFB0603201-03）。

Investigation on the Status of the Reconstructive Projects for SCR De-NO_x Under the Condition of Ultra-low Emission

YAN Min, ZHANG Yang, ZHU Yue, JIANG Jianpingg

China Huadian Electric Research Institute, Hangzhou 310030,China

Received:2018-01-03 Revised:2018-01-23 Online:2018-11-05 Published:2018-11-16
Supported by:
This work is supported by National Key Research and Development Program of China (No.2016YFC0203704-2; No.2017YFB0603201-03).

摘要/Abstract

摘要： 为达到“煤电节能减排升级与改造行动计划（2014—2020年）”要求，超低排放改造工作在燃煤电厂全面展开。对49个电厂已完成烟气超低排放改造的132台机组安装的SCR脱硝催化剂现状进行了调查，对脱硝机组的类型、烟气温度、入口粉尘浓度、入口NO_x浓度和超低排放要求下脱硝催化剂的改造方案进行了统计和分析，并对超低排放改造前后SCR脱硝催化剂不同催化剂层间体积的变化进行了比较，同时结合部分改造案例分析了超低排放改造设计过程中值得注意和改进的事项，以进一步保障脱硝系统的达标排放和安全经济运行，给后续开展烟气脱硝超低排放改造机组的设计和建设提供借鉴。

关键词: 超低排放, SCR脱硝催化剂, NO_x, 脱硝效率, 达标排放, 运行成本

Abstract: In order to meet the requirements of the Plan of Action for Energy-saving and Emission-reduction upgrading and Reconstruction of Coal and Power plants (2014-2020), reconstructive projects of ultra-low emissions have been carried out in many coal-fired power plants. To provide reference for the design and construction of flue gas denitration for ultra-low emission units, investigation on the catalyst status is conducted for 132 units in 49 power plants whose flue gas denitration ultra low emission retrofits had been completed. The unit type, flue gas temperature, inlet dust concentration, inlet NO_x concentration and modification of catalysts are analyzed. The catalyst volumes before and after the ultra-low emission retrofit are compared. At the same time, some proposals based on case analysis are given to guarantee the security and economical operation and the standardized NO_x emission.

Key words: ultra-low emission, SCR De-NO_x catalyst, NO_x, De-NO_x efficiency, standard emmision, operation cost

中图分类号:

X511
TM621.9

晏敏, 张杨, 朱跃, 江建平. 超低排放形势下SCR脱硝工程改造现状的调查[J]. 中国电力, 2018, 51(11): 163-167.

YAN Min, ZHANG Yang, ZHU Yue, JIANG Jianpingg. Investigation on the Status of the Reconstructive Projects for SCR De-NO_x Under the Condition of Ultra-low Emission[J]. Electric Power, 2018, 51(11): 163-167.

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https://www.electricpower.com.cn/CN/Y2018/V51/I11/163

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超低排放形势下SCR脱硝工程改造现状的调查

Investigation on the Status of the Reconstructive Projects for SCR De-NO_x Under the Condition of Ultra-low Emission

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超低排放形势下SCR脱硝工程改造现状的调查

Investigation on the Status of the Reconstructive Projects for SCR De-NOx Under the Condition of Ultra-low Emission

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Investigation on the Status of the Reconstructive Projects for SCR De-NO_x Under the Condition of Ultra-low Emission